2 * Freescale i.MX23/i.MX28 SB image generator
4 * Copyright (C) 2012-2013 Marek Vasut <marex@denx.de>
6 * SPDX-License-Identifier: GPL-2.0+
18 #include <openssl/evp.h>
27 * |-Write to address command block
30 * |-ORR address with mask command block
32 * |-Write to address command block
36 #define SB_HAB_DCD_WRITE 0xccUL
37 #define SB_HAB_DCD_CHECK 0xcfUL
38 #define SB_HAB_DCD_NOOP 0xc0UL
39 #define SB_HAB_DCD_MASK_BIT (1 << 3)
40 #define SB_HAB_DCD_SET_BIT (1 << 4)
42 /* Addr.n = Value.n */
43 #define SB_DCD_WRITE \
44 (SB_HAB_DCD_WRITE << 24)
45 /* Addr.n &= ~Value.n */
47 ((SB_HAB_DCD_WRITE << 24) | SB_HAB_DCD_SET_BIT)
48 /* Addr.n |= Value.n */
50 ((SB_HAB_DCD_WRITE << 24) | SB_HAB_DCD_SET_BIT | SB_HAB_DCD_MASK_BIT)
51 /* (Addr.n & Value.n) == 0 */
52 #define SB_DCD_CHK_EQZ \
53 (SB_HAB_DCD_CHECK << 24)
54 /* (Addr.n & Value.n) == Value.n */
55 #define SB_DCD_CHK_EQ \
56 ((SB_HAB_DCD_CHECK << 24) | SB_HAB_DCD_SET_BIT)
57 /* (Addr.n & Value.n) != Value.n */
58 #define SB_DCD_CHK_NEQ \
59 ((SB_HAB_DCD_CHECK << 24) | SB_HAB_DCD_MASK_BIT)
60 /* (Addr.n & Value.n) != 0 */
61 #define SB_DCD_CHK_NEZ \
62 ((SB_HAB_DCD_CHECK << 24) | SB_HAB_DCD_SET_BIT | SB_HAB_DCD_MASK_BIT)
65 (SB_HAB_DCD_NOOP << 24)
68 struct sb_dcd_ctx *dcd;
74 /* Size of the whole DCD block. */
77 /* Pointer to previous DCD command block. */
78 uint32_t *prev_dcd_head;
100 struct sb_cmd_ctx *cmd;
105 struct sb_command payload;
106 struct sb_command c_payload;
109 struct sb_section_ctx {
115 struct sb_section_ctx *sect;
117 struct sb_cmd_ctx *cmd_head;
118 struct sb_cmd_ctx *cmd_tail;
120 struct sb_sections_header payload;
123 struct sb_image_ctx {
124 unsigned int in_section:1;
125 unsigned int in_dcd:1;
126 /* Image configuration */
127 unsigned int verbose_boot:1;
128 unsigned int silent_dump:1;
129 char *input_filename;
130 char *output_filename;
132 uint8_t image_key[16];
134 /* Number of section in the image */
135 unsigned int sect_count;
136 /* Bootable section */
137 unsigned int sect_boot;
138 unsigned int sect_boot_found:1;
140 struct sb_section_ctx *sect_head;
141 struct sb_section_ctx *sect_tail;
143 struct sb_dcd_ctx *dcd_head;
144 struct sb_dcd_ctx *dcd_tail;
146 EVP_CIPHER_CTX cipher_ctx;
149 struct sb_key_dictionary_key sb_dict_key;
151 struct sb_boot_image_header payload;
155 * Instruction semantics:
159 * LOAD IVT address IVT_entry_point
160 * FILL address pattern length
161 * JUMP [HAB] address [r0_arg]
162 * CALL [HAB] address [r0_arg]
164 * For i.MX23, mode = USB/I2C/SPI1_FLASH/SPI2_FLASH/NAND_BCH
165 * JTAG/SPI3_EEPROM/SD_SSP0/SD_SSP1
166 * For i.MX28, mode = USB/I2C/SPI2_FLASH/SPI3_FLASH/NAND_BCH
167 * JTAG/SPI2_EEPROM/SD_SSP0/SD_SSP1
173 static int sb_aes_init(struct sb_image_ctx *ictx, uint8_t *iv, int enc)
175 EVP_CIPHER_CTX *ctx = &ictx->cipher_ctx;
178 /* If there is no init vector, init vector is all zeroes. */
180 iv = ictx->image_key;
182 EVP_CIPHER_CTX_init(ctx);
183 ret = EVP_CipherInit(ctx, EVP_aes_128_cbc(), ictx->image_key, iv, enc);
185 EVP_CIPHER_CTX_set_padding(ctx, 0);
189 static int sb_aes_crypt(struct sb_image_ctx *ictx, uint8_t *in_data,
190 uint8_t *out_data, int in_len)
192 EVP_CIPHER_CTX *ctx = &ictx->cipher_ctx;
196 outbuf = malloc(in_len);
199 memset(outbuf, 0, sizeof(in_len));
201 ret = EVP_CipherUpdate(ctx, outbuf, &outlen, in_data, in_len);
208 memcpy(out_data, outbuf, outlen);
215 static int sb_aes_deinit(EVP_CIPHER_CTX *ctx)
217 return EVP_CIPHER_CTX_cleanup(ctx);
220 static int sb_aes_reinit(struct sb_image_ctx *ictx, int enc)
223 EVP_CIPHER_CTX *ctx = &ictx->cipher_ctx;
224 struct sb_boot_image_header *sb_header = &ictx->payload;
225 uint8_t *iv = sb_header->iv;
227 ret = sb_aes_deinit(ctx);
230 return sb_aes_init(ictx, iv, enc);
236 static uint32_t crc32(uint8_t *data, uint32_t len)
238 const uint32_t poly = 0x04c11db7;
239 uint32_t crc32 = 0xffffffff;
240 unsigned int byte, bit;
242 for (byte = 0; byte < len; byte++) {
243 crc32 ^= data[byte] << 24;
245 for (bit = 8; bit > 0; bit--) {
246 if (crc32 & (1UL << 31))
247 crc32 = (crc32 << 1) ^ poly;
249 crc32 = (crc32 << 1);
259 static void soprintf(struct sb_image_ctx *ictx, const char *fmt, ...)
263 if (ictx->silent_dump)
267 vfprintf(stdout, fmt, ap);
274 static time_t sb_get_timestamp(void)
276 struct tm time_2000 = {
277 .tm_yday = 1, /* Jan. 1st */
278 .tm_year = 100, /* 2000 */
280 time_t seconds_to_2000 = mktime(&time_2000);
281 time_t seconds_to_now = time(NULL);
283 return seconds_to_now - seconds_to_2000;
286 static int sb_get_time(time_t time, struct tm *tm)
288 struct tm time_2000 = {
289 .tm_yday = 1, /* Jan. 1st */
290 .tm_year = 0, /* 1900 */
292 const time_t seconds_to_2000 = mktime(&time_2000);
293 const time_t seconds_to_now = seconds_to_2000 + time;
295 ret = gmtime_r(&seconds_to_now, tm);
296 return ret ? 0 : -EINVAL;
299 static void sb_encrypt_sb_header(struct sb_image_ctx *ictx)
301 EVP_MD_CTX *md_ctx = &ictx->md_ctx;
302 struct sb_boot_image_header *sb_header = &ictx->payload;
303 uint8_t *sb_header_ptr = (uint8_t *)sb_header;
305 /* Encrypt the header, compute the digest. */
306 sb_aes_crypt(ictx, sb_header_ptr, NULL, sizeof(*sb_header));
307 EVP_DigestUpdate(md_ctx, sb_header_ptr, sizeof(*sb_header));
310 static void sb_encrypt_sb_sections_header(struct sb_image_ctx *ictx)
312 EVP_MD_CTX *md_ctx = &ictx->md_ctx;
313 struct sb_section_ctx *sctx = ictx->sect_head;
314 struct sb_sections_header *shdr;
315 uint8_t *sb_sections_header_ptr;
316 const int size = sizeof(*shdr);
319 shdr = &sctx->payload;
320 sb_sections_header_ptr = (uint8_t *)shdr;
322 sb_aes_crypt(ictx, sb_sections_header_ptr,
323 ictx->sb_dict_key.cbc_mac, size);
324 EVP_DigestUpdate(md_ctx, sb_sections_header_ptr, size);
330 static void sb_encrypt_key_dictionary_key(struct sb_image_ctx *ictx)
332 EVP_MD_CTX *md_ctx = &ictx->md_ctx;
334 sb_aes_crypt(ictx, ictx->image_key, ictx->sb_dict_key.key,
335 sizeof(ictx->sb_dict_key.key));
336 EVP_DigestUpdate(md_ctx, &ictx->sb_dict_key, sizeof(ictx->sb_dict_key));
339 static void sb_decrypt_key_dictionary_key(struct sb_image_ctx *ictx)
341 EVP_MD_CTX *md_ctx = &ictx->md_ctx;
343 EVP_DigestUpdate(md_ctx, &ictx->sb_dict_key, sizeof(ictx->sb_dict_key));
344 sb_aes_crypt(ictx, ictx->sb_dict_key.key, ictx->image_key,
345 sizeof(ictx->sb_dict_key.key));
348 static void sb_encrypt_tag(struct sb_image_ctx *ictx,
349 struct sb_cmd_ctx *cctx)
351 EVP_MD_CTX *md_ctx = &ictx->md_ctx;
352 struct sb_command *cmd = &cctx->payload;
354 sb_aes_crypt(ictx, (uint8_t *)cmd,
355 (uint8_t *)&cctx->c_payload, sizeof(*cmd));
356 EVP_DigestUpdate(md_ctx, &cctx->c_payload, sizeof(*cmd));
359 static int sb_encrypt_image(struct sb_image_ctx *ictx)
361 /* Start image-wide crypto. */
362 EVP_MD_CTX_init(&ictx->md_ctx);
363 EVP_DigestInit(&ictx->md_ctx, EVP_sha1());
368 sb_aes_init(ictx, NULL, 1);
369 sb_encrypt_sb_header(ictx);
372 * SB sections header.
374 sb_encrypt_sb_sections_header(ictx);
379 sb_aes_reinit(ictx, 1);
380 sb_encrypt_key_dictionary_key(ictx);
385 struct sb_cmd_ctx *cctx;
386 struct sb_command *ccmd;
387 struct sb_section_ctx *sctx = ictx->sect_head;
390 cctx = sctx->cmd_head;
392 sb_aes_reinit(ictx, 1);
395 ccmd = &cctx->payload;
397 sb_encrypt_tag(ictx, cctx);
399 if (ccmd->header.tag == ROM_TAG_CMD) {
400 sb_aes_reinit(ictx, 1);
401 } else if (ccmd->header.tag == ROM_LOAD_CMD) {
402 sb_aes_crypt(ictx, cctx->data, cctx->data,
404 EVP_DigestUpdate(&ictx->md_ctx, cctx->data,
415 * Dump the SHA1 of the whole image.
417 sb_aes_reinit(ictx, 1);
419 EVP_DigestFinal(&ictx->md_ctx, ictx->digest, NULL);
420 sb_aes_crypt(ictx, ictx->digest, ictx->digest, sizeof(ictx->digest));
422 /* Stop the encryption session. */
423 sb_aes_deinit(&ictx->cipher_ctx);
428 static int sb_load_file(struct sb_cmd_ctx *cctx, char *filename)
430 long real_size, roundup_size;
437 fprintf(stderr, "ERR: Missing filename!\n");
441 fp = fopen(filename, "r");
445 ret = fseek(fp, 0, SEEK_END);
449 real_size = ftell(fp);
453 ret = fseek(fp, 0, SEEK_SET);
457 roundup_size = roundup(real_size, SB_BLOCK_SIZE);
458 data = calloc(1, roundup_size);
462 size = fread(data, 1, real_size, fp);
463 if (size != (unsigned long)real_size)
467 cctx->length = roundup_size;
477 fprintf(stderr, "ERR: Failed to load file \"%s\"\n", filename);
481 static uint8_t sb_command_checksum(struct sb_command *inst)
483 uint8_t *inst_ptr = (uint8_t *)inst;
487 for (i = 0; i < sizeof(struct sb_command); i++)
493 static int sb_token_to_long(char *tok, uint32_t *rid)
498 if (tok[0] != '0' || tok[1] != 'x') {
499 fprintf(stderr, "ERR: Invalid hexadecimal number!\n");
505 id = strtoul(tok, &endptr, 16);
506 if ((errno == ERANGE && id == ULONG_MAX) || (errno != 0 && id == 0)) {
507 fprintf(stderr, "ERR: Value can't be decoded!\n");
511 /* Check for 32-bit overflow. */
512 if (id > 0xffffffff) {
513 fprintf(stderr, "ERR: Value too big!\n");
518 fprintf(stderr, "ERR: Deformed value!\n");
526 static int sb_grow_dcd(struct sb_dcd_ctx *dctx, unsigned int inc_size)
533 dctx->size += inc_size;
534 tmp = realloc(dctx->payload, dctx->size);
540 /* Assemble and update the HAB DCD header. */
541 dctx->payload[0] = htonl((SB_HAB_DCD_TAG << 24) |
548 static int sb_build_dcd(struct sb_image_ctx *ictx, struct sb_cmd_list *cmd)
550 struct sb_dcd_ctx *dctx;
556 dctx = calloc(1, sizeof(*dctx));
560 ret = sb_grow_dcd(dctx, 4);
564 /* Read DCD block number. */
565 tok = strtok(cmd->cmd, " ");
567 fprintf(stderr, "#%i ERR: DCD block without number!\n",
573 /* Parse the DCD block number. */
574 ret = sb_token_to_long(tok, &id);
576 fprintf(stderr, "#%i ERR: Malformed DCD block number!\n",
584 * The DCD block is now constructed. Append it to the list.
585 * WARNING: The DCD size is still not computed and will be
586 * updated while parsing it's commands.
588 if (!ictx->dcd_head) {
589 ictx->dcd_head = dctx;
590 ictx->dcd_tail = dctx;
592 ictx->dcd_tail->dcd = dctx;
593 ictx->dcd_tail = dctx;
604 static int sb_build_dcd_block(struct sb_image_ctx *ictx,
605 struct sb_cmd_list *cmd,
609 uint32_t address, value, length;
612 struct sb_dcd_ctx *dctx = ictx->dcd_tail;
615 if (dctx->prev_dcd_head && (type != SB_DCD_NOOP) &&
616 ((dctx->prev_dcd_head[0] & 0xff0000ff) == type)) {
617 /* Same instruction as before, just append it. */
618 ret = sb_grow_dcd(dctx, 8);
621 } else if (type == SB_DCD_NOOP) {
622 ret = sb_grow_dcd(dctx, 4);
626 /* Update DCD command block pointer. */
627 dctx->prev_dcd_head = dctx->payload +
628 dctx->size / sizeof(*dctx->payload) - 1;
630 /* NOOP has only 4 bytes and no payload. */
634 * Either a different instruction block started now
635 * or this is the first instruction block.
637 ret = sb_grow_dcd(dctx, 12);
641 /* Update DCD command block pointer. */
642 dctx->prev_dcd_head = dctx->payload +
643 dctx->size / sizeof(*dctx->payload) - 3;
646 dcd = dctx->payload + dctx->size / sizeof(*dctx->payload) - 2;
649 * Prepare the command.
651 tok = strtok(cmd->cmd, " ");
653 fprintf(stderr, "#%i ERR: Missing DCD address!\n",
659 /* Read DCD destination address. */
660 ret = sb_token_to_long(tok, &address);
662 fprintf(stderr, "#%i ERR: Incorrect DCD address!\n",
667 tok = strtok(NULL, " ");
669 fprintf(stderr, "#%i ERR: Missing DCD value!\n",
675 /* Read DCD operation value. */
676 ret = sb_token_to_long(tok, &value);
678 fprintf(stderr, "#%i ERR: Incorrect DCD value!\n",
683 /* Fill in the new DCD entry. */
684 dcd[0] = htonl(address);
685 dcd[1] = htonl(value);
688 /* Update the DCD command block. */
689 length = dctx->size -
690 ((dctx->prev_dcd_head - dctx->payload) *
691 sizeof(*dctx->payload));
692 dctx->prev_dcd_head[0] = htonl(type | (length << 8));
698 static int sb_build_section(struct sb_image_ctx *ictx, struct sb_cmd_list *cmd)
700 struct sb_section_ctx *sctx;
701 struct sb_sections_header *shdr;
703 uint32_t bootable = 0;
707 sctx = calloc(1, sizeof(*sctx));
711 /* Read section number. */
712 tok = strtok(cmd->cmd, " ");
714 fprintf(stderr, "#%i ERR: Section without number!\n",
720 /* Parse the section number. */
721 ret = sb_token_to_long(tok, &id);
723 fprintf(stderr, "#%i ERR: Malformed section number!\n",
728 /* Read section's BOOTABLE flag. */
729 tok = strtok(NULL, " ");
730 if (tok && (strlen(tok) == 8) && !strncmp(tok, "BOOTABLE", 8))
731 bootable = SB_SECTION_FLAG_BOOTABLE;
733 sctx->boot = bootable;
735 shdr = &sctx->payload;
736 shdr->section_number = id;
737 shdr->section_flags = bootable;
740 * The section is now constructed. Append it to the list.
741 * WARNING: The section size is still not computed and will
742 * be updated while parsing it's commands.
746 /* Mark that this section is bootable one. */
748 if (ictx->sect_boot_found) {
750 "#%i WARN: Multiple bootable section!\n",
753 ictx->sect_boot = id;
754 ictx->sect_boot_found = 1;
758 if (!ictx->sect_head) {
759 ictx->sect_head = sctx;
760 ictx->sect_tail = sctx;
762 ictx->sect_tail->sect = sctx;
763 ictx->sect_tail = sctx;
773 static int sb_build_command_nop(struct sb_image_ctx *ictx)
775 struct sb_section_ctx *sctx = ictx->sect_tail;
776 struct sb_cmd_ctx *cctx;
777 struct sb_command *ccmd;
779 cctx = calloc(1, sizeof(*cctx));
783 ccmd = &cctx->payload;
786 * Construct the command.
788 ccmd->header.checksum = 0x5a;
789 ccmd->header.tag = ROM_NOP_CMD;
791 cctx->size = sizeof(*ccmd);
794 * Append the command to the last section.
796 if (!sctx->cmd_head) {
797 sctx->cmd_head = cctx;
798 sctx->cmd_tail = cctx;
800 sctx->cmd_tail->cmd = cctx;
801 sctx->cmd_tail = cctx;
807 static int sb_build_command_tag(struct sb_image_ctx *ictx,
808 struct sb_cmd_list *cmd)
810 struct sb_section_ctx *sctx = ictx->sect_tail;
811 struct sb_cmd_ctx *cctx;
812 struct sb_command *ccmd;
815 cctx = calloc(1, sizeof(*cctx));
819 ccmd = &cctx->payload;
822 * Prepare the command.
824 /* Check for the LAST keyword. */
825 tok = strtok(cmd->cmd, " ");
826 if (tok && !strcmp(tok, "LAST"))
827 ccmd->header.flags = ROM_TAG_CMD_FLAG_ROM_LAST_TAG;
830 * Construct the command.
832 ccmd->header.checksum = 0x5a;
833 ccmd->header.tag = ROM_TAG_CMD;
835 cctx->size = sizeof(*ccmd);
838 * Append the command to the last section.
840 if (!sctx->cmd_head) {
841 sctx->cmd_head = cctx;
842 sctx->cmd_tail = cctx;
844 sctx->cmd_tail->cmd = cctx;
845 sctx->cmd_tail = cctx;
851 static int sb_build_command_load(struct sb_image_ctx *ictx,
852 struct sb_cmd_list *cmd)
854 struct sb_section_ctx *sctx = ictx->sect_tail;
855 struct sb_cmd_ctx *cctx;
856 struct sb_command *ccmd;
858 int ret, is_ivt = 0, is_dcd = 0;
859 uint32_t dest, dcd = 0;
861 cctx = calloc(1, sizeof(*cctx));
865 ccmd = &cctx->payload;
868 * Prepare the command.
870 tok = strtok(cmd->cmd, " ");
872 fprintf(stderr, "#%i ERR: Missing LOAD address or 'IVT'!\n",
878 /* Check for "IVT" flag. */
879 if (!strcmp(tok, "IVT"))
881 if (!strcmp(tok, "DCD"))
883 if (is_ivt || is_dcd) {
884 tok = strtok(NULL, " ");
886 fprintf(stderr, "#%i ERR: Missing LOAD address!\n",
893 /* Read load destination address. */
894 ret = sb_token_to_long(tok, &dest);
896 fprintf(stderr, "#%i ERR: Incorrect LOAD address!\n",
901 /* Read filename or IVT entrypoint or DCD block ID. */
902 tok = strtok(NULL, " ");
905 "#%i ERR: Missing LOAD filename or IVT ep or DCD block ID!\n",
913 struct sb_ivt_header *ivt;
915 ret = sb_token_to_long(tok, &ivtep);
919 "#%i ERR: Incorrect IVT entry point!\n",
924 ivt = calloc(1, sizeof(*ivt));
930 ivt->header = sb_hab_ivt_header();
934 cctx->data = (uint8_t *)ivt;
935 cctx->length = sizeof(*ivt);
937 struct sb_dcd_ctx *dctx = ictx->dcd_head;
941 ret = sb_token_to_long(tok, &dcdid);
945 "#%i ERR: Incorrect DCD block ID!\n",
951 if (dctx->id == dcdid)
957 fprintf(stderr, "#%i ERR: DCD block %08x not found!\n",
962 asize = roundup(dctx->size, SB_BLOCK_SIZE);
963 payload = calloc(1, asize);
969 memcpy(payload, dctx->payload, dctx->size);
971 cctx->data = payload;
972 cctx->length = asize;
974 /* Set the Load DCD flag. */
975 dcd = ROM_LOAD_CMD_FLAG_DCD_LOAD;
977 /* Regular LOAD of a file. */
978 ret = sb_load_file(cctx, tok);
980 fprintf(stderr, "#%i ERR: Cannot load '%s'!\n",
986 if (cctx->length & (SB_BLOCK_SIZE - 1)) {
987 fprintf(stderr, "#%i ERR: Unaligned payload!\n",
992 * Construct the command.
994 ccmd->header.checksum = 0x5a;
995 ccmd->header.tag = ROM_LOAD_CMD;
996 ccmd->header.flags = dcd;
998 ccmd->load.address = dest;
999 ccmd->load.count = cctx->length;
1000 ccmd->load.crc32 = crc32(cctx->data, cctx->length);
1002 cctx->size = sizeof(*ccmd) + cctx->length;
1005 * Append the command to the last section.
1007 if (!sctx->cmd_head) {
1008 sctx->cmd_head = cctx;
1009 sctx->cmd_tail = cctx;
1011 sctx->cmd_tail->cmd = cctx;
1012 sctx->cmd_tail = cctx;
1022 static int sb_build_command_fill(struct sb_image_ctx *ictx,
1023 struct sb_cmd_list *cmd)
1025 struct sb_section_ctx *sctx = ictx->sect_tail;
1026 struct sb_cmd_ctx *cctx;
1027 struct sb_command *ccmd;
1029 uint32_t address, pattern, length;
1032 cctx = calloc(1, sizeof(*cctx));
1036 ccmd = &cctx->payload;
1039 * Prepare the command.
1041 tok = strtok(cmd->cmd, " ");
1043 fprintf(stderr, "#%i ERR: Missing FILL address!\n",
1049 /* Read fill destination address. */
1050 ret = sb_token_to_long(tok, &address);
1052 fprintf(stderr, "#%i ERR: Incorrect FILL address!\n",
1057 tok = strtok(NULL, " ");
1059 fprintf(stderr, "#%i ERR: Missing FILL pattern!\n",
1065 /* Read fill pattern address. */
1066 ret = sb_token_to_long(tok, &pattern);
1068 fprintf(stderr, "#%i ERR: Incorrect FILL pattern!\n",
1073 tok = strtok(NULL, " ");
1075 fprintf(stderr, "#%i ERR: Missing FILL length!\n",
1081 /* Read fill pattern address. */
1082 ret = sb_token_to_long(tok, &length);
1084 fprintf(stderr, "#%i ERR: Incorrect FILL length!\n",
1090 * Construct the command.
1092 ccmd->header.checksum = 0x5a;
1093 ccmd->header.tag = ROM_FILL_CMD;
1095 ccmd->fill.address = address;
1096 ccmd->fill.count = length;
1097 ccmd->fill.pattern = pattern;
1099 cctx->size = sizeof(*ccmd);
1102 * Append the command to the last section.
1104 if (!sctx->cmd_head) {
1105 sctx->cmd_head = cctx;
1106 sctx->cmd_tail = cctx;
1108 sctx->cmd_tail->cmd = cctx;
1109 sctx->cmd_tail = cctx;
1119 static int sb_build_command_jump_call(struct sb_image_ctx *ictx,
1120 struct sb_cmd_list *cmd,
1121 unsigned int is_call)
1123 struct sb_section_ctx *sctx = ictx->sect_tail;
1124 struct sb_cmd_ctx *cctx;
1125 struct sb_command *ccmd;
1127 uint32_t dest, arg = 0x0;
1130 const char *cmdname = is_call ? "CALL" : "JUMP";
1132 cctx = calloc(1, sizeof(*cctx));
1136 ccmd = &cctx->payload;
1139 * Prepare the command.
1141 tok = strtok(cmd->cmd, " ");
1144 "#%i ERR: Missing %s address or 'HAB'!\n",
1145 cmd->lineno, cmdname);
1150 /* Check for "HAB" flag. */
1151 if (!strcmp(tok, "HAB")) {
1152 hab = is_call ? ROM_CALL_CMD_FLAG_HAB : ROM_JUMP_CMD_FLAG_HAB;
1153 tok = strtok(NULL, " ");
1155 fprintf(stderr, "#%i ERR: Missing %s address!\n",
1156 cmd->lineno, cmdname);
1161 /* Read load destination address. */
1162 ret = sb_token_to_long(tok, &dest);
1164 fprintf(stderr, "#%i ERR: Incorrect %s address!\n",
1165 cmd->lineno, cmdname);
1169 tok = strtok(NULL, " ");
1171 ret = sb_token_to_long(tok, &arg);
1174 "#%i ERR: Incorrect %s argument!\n",
1175 cmd->lineno, cmdname);
1181 * Construct the command.
1183 ccmd->header.checksum = 0x5a;
1184 ccmd->header.tag = is_call ? ROM_CALL_CMD : ROM_JUMP_CMD;
1185 ccmd->header.flags = hab;
1187 ccmd->call.address = dest;
1188 ccmd->call.argument = arg;
1190 cctx->size = sizeof(*ccmd);
1193 * Append the command to the last section.
1195 if (!sctx->cmd_head) {
1196 sctx->cmd_head = cctx;
1197 sctx->cmd_tail = cctx;
1199 sctx->cmd_tail->cmd = cctx;
1200 sctx->cmd_tail = cctx;
1210 static int sb_build_command_jump(struct sb_image_ctx *ictx,
1211 struct sb_cmd_list *cmd)
1213 return sb_build_command_jump_call(ictx, cmd, 0);
1216 static int sb_build_command_call(struct sb_image_ctx *ictx,
1217 struct sb_cmd_list *cmd)
1219 return sb_build_command_jump_call(ictx, cmd, 1);
1222 static int sb_build_command_mode(struct sb_image_ctx *ictx,
1223 struct sb_cmd_list *cmd)
1225 struct sb_section_ctx *sctx = ictx->sect_tail;
1226 struct sb_cmd_ctx *cctx;
1227 struct sb_command *ccmd;
1231 uint32_t mode = 0xffffffff;
1233 cctx = calloc(1, sizeof(*cctx));
1237 ccmd = &cctx->payload;
1240 * Prepare the command.
1242 tok = strtok(cmd->cmd, " ");
1244 fprintf(stderr, "#%i ERR: Missing MODE boot mode argument!\n",
1250 for (i = 0; i < ARRAY_SIZE(modetable); i++) {
1251 if (!strcmp(tok, modetable[i].name)) {
1252 mode = modetable[i].mode;
1256 if (!modetable[i].altname)
1259 if (!strcmp(tok, modetable[i].altname)) {
1260 mode = modetable[i].mode;
1265 if (mode == 0xffffffff) {
1266 fprintf(stderr, "#%i ERR: Invalid MODE boot mode argument!\n",
1273 * Construct the command.
1275 ccmd->header.checksum = 0x5a;
1276 ccmd->header.tag = ROM_MODE_CMD;
1278 ccmd->mode.mode = mode;
1280 cctx->size = sizeof(*ccmd);
1283 * Append the command to the last section.
1285 if (!sctx->cmd_head) {
1286 sctx->cmd_head = cctx;
1287 sctx->cmd_tail = cctx;
1289 sctx->cmd_tail->cmd = cctx;
1290 sctx->cmd_tail = cctx;
1300 static int sb_prefill_image_header(struct sb_image_ctx *ictx)
1302 struct sb_boot_image_header *hdr = &ictx->payload;
1304 /* Fill signatures */
1305 memcpy(hdr->signature1, "STMP", 4);
1306 memcpy(hdr->signature2, "sgtl", 4);
1308 /* SB Image version 1.1 */
1309 hdr->major_version = SB_VERSION_MAJOR;
1310 hdr->minor_version = SB_VERSION_MINOR;
1312 /* Boot image major version */
1313 hdr->product_version.major = htons(0x999);
1314 hdr->product_version.minor = htons(0x999);
1315 hdr->product_version.revision = htons(0x999);
1316 /* Boot image major version */
1317 hdr->component_version.major = htons(0x999);
1318 hdr->component_version.minor = htons(0x999);
1319 hdr->component_version.revision = htons(0x999);
1321 /* Drive tag must be 0x0 for i.MX23 */
1324 hdr->header_blocks =
1325 sizeof(struct sb_boot_image_header) / SB_BLOCK_SIZE;
1326 hdr->section_header_size =
1327 sizeof(struct sb_sections_header) / SB_BLOCK_SIZE;
1328 hdr->timestamp_us = sb_get_timestamp() * 1000000;
1330 /* FIXME -- add proper config option */
1331 hdr->flags = ictx->verbose_boot ? SB_IMAGE_FLAG_VERBOSE : 0,
1333 /* FIXME -- We support only default key */
1339 static int sb_postfill_image_header(struct sb_image_ctx *ictx)
1341 struct sb_boot_image_header *hdr = &ictx->payload;
1342 struct sb_section_ctx *sctx = ictx->sect_head;
1343 uint32_t kd_size, sections_blocks;
1346 /* The main SB header size in blocks. */
1347 hdr->image_blocks = hdr->header_blocks;
1349 /* Size of the key dictionary, which has single zero entry. */
1350 kd_size = hdr->key_count * sizeof(struct sb_key_dictionary_key);
1351 hdr->image_blocks += kd_size / SB_BLOCK_SIZE;
1353 /* Now count the payloads. */
1354 hdr->section_count = ictx->sect_count;
1356 hdr->image_blocks += sctx->size / SB_BLOCK_SIZE;
1360 if (!ictx->sect_boot_found) {
1361 fprintf(stderr, "ERR: No bootable section selected!\n");
1364 hdr->first_boot_section_id = ictx->sect_boot;
1366 /* The n * SB section size in blocks. */
1367 sections_blocks = hdr->section_count * hdr->section_header_size;
1368 hdr->image_blocks += sections_blocks;
1370 /* Key dictionary offset. */
1371 hdr->key_dictionary_block = hdr->header_blocks + sections_blocks;
1373 /* Digest of the whole image. */
1374 hdr->image_blocks += 2;
1376 /* Pointer past the dictionary. */
1377 hdr->first_boot_tag_block =
1378 hdr->key_dictionary_block + kd_size / SB_BLOCK_SIZE;
1380 /* Compute header digest. */
1381 EVP_MD_CTX_init(&md_ctx);
1383 EVP_DigestInit(&md_ctx, EVP_sha1());
1384 EVP_DigestUpdate(&md_ctx, hdr->signature1,
1385 sizeof(struct sb_boot_image_header) -
1386 sizeof(hdr->digest));
1387 EVP_DigestFinal(&md_ctx, hdr->digest, NULL);
1392 static int sb_fixup_sections_and_tags(struct sb_image_ctx *ictx)
1394 /* Fixup the placement of sections. */
1395 struct sb_boot_image_header *ihdr = &ictx->payload;
1396 struct sb_section_ctx *sctx = ictx->sect_head;
1397 struct sb_sections_header *shdr;
1398 struct sb_cmd_ctx *cctx;
1399 struct sb_command *ccmd;
1400 uint32_t offset = ihdr->first_boot_tag_block;
1403 shdr = &sctx->payload;
1405 /* Fill in the section TAG offset. */
1406 shdr->section_offset = offset + 1;
1407 offset += shdr->section_size;
1409 /* Section length is measured from the TAG block. */
1410 shdr->section_size--;
1412 /* Fixup the TAG command. */
1413 cctx = sctx->cmd_head;
1415 ccmd = &cctx->payload;
1416 if (ccmd->header.tag == ROM_TAG_CMD) {
1417 ccmd->tag.section_number = shdr->section_number;
1418 ccmd->tag.section_length = shdr->section_size;
1419 ccmd->tag.section_flags = shdr->section_flags;
1422 /* Update the command checksum. */
1423 ccmd->header.checksum = sb_command_checksum(ccmd);
1434 static int sb_parse_line(struct sb_image_ctx *ictx, struct sb_cmd_list *cmd)
1437 char *line = cmd->cmd;
1441 /* Analyze the identifier on this line first. */
1442 tok = strtok_r(line, " ", &rptr);
1443 if (!tok || (strlen(tok) == 0)) {
1444 fprintf(stderr, "#%i ERR: Invalid line!\n", cmd->lineno);
1451 if (!strcmp(tok, "DCD")) {
1452 ictx->in_section = 0;
1454 sb_build_dcd(ictx, cmd);
1459 if (!strcmp(tok, "SECTION")) {
1460 ictx->in_section = 1;
1462 sb_build_section(ictx, cmd);
1466 if (!ictx->in_section && !ictx->in_dcd) {
1467 fprintf(stderr, "#%i ERR: Data outside of a section!\n",
1472 if (ictx->in_section) {
1473 /* Section commands */
1474 if (!strcmp(tok, "NOP")) {
1475 ret = sb_build_command_nop(ictx);
1476 } else if (!strcmp(tok, "TAG")) {
1477 ret = sb_build_command_tag(ictx, cmd);
1478 } else if (!strcmp(tok, "LOAD")) {
1479 ret = sb_build_command_load(ictx, cmd);
1480 } else if (!strcmp(tok, "FILL")) {
1481 ret = sb_build_command_fill(ictx, cmd);
1482 } else if (!strcmp(tok, "JUMP")) {
1483 ret = sb_build_command_jump(ictx, cmd);
1484 } else if (!strcmp(tok, "CALL")) {
1485 ret = sb_build_command_call(ictx, cmd);
1486 } else if (!strcmp(tok, "MODE")) {
1487 ret = sb_build_command_mode(ictx, cmd);
1490 "#%i ERR: Unsupported instruction '%s'!\n",
1494 } else if (ictx->in_dcd) {
1496 uint32_t ilen = '1';
1498 tok = strtok_r(tok, ".", &lptr);
1499 if (!tok || (strlen(tok) == 0) || (lptr && strlen(lptr) != 1)) {
1500 fprintf(stderr, "#%i ERR: Invalid line!\n",
1506 (lptr[0] != '1' && lptr[0] != '2' && lptr[0] != '4')) {
1507 fprintf(stderr, "#%i ERR: Invalid instruction width!\n",
1513 ilen = lptr[0] - '1';
1516 if (!strcmp(tok, "WRITE")) {
1517 ret = sb_build_dcd_block(ictx, cmd,
1518 SB_DCD_WRITE | ilen);
1519 } else if (!strcmp(tok, "ANDC")) {
1520 ret = sb_build_dcd_block(ictx, cmd,
1521 SB_DCD_ANDC | ilen);
1522 } else if (!strcmp(tok, "ORR")) {
1523 ret = sb_build_dcd_block(ictx, cmd,
1525 } else if (!strcmp(tok, "EQZ")) {
1526 ret = sb_build_dcd_block(ictx, cmd,
1527 SB_DCD_CHK_EQZ | ilen);
1528 } else if (!strcmp(tok, "EQ")) {
1529 ret = sb_build_dcd_block(ictx, cmd,
1530 SB_DCD_CHK_EQ | ilen);
1531 } else if (!strcmp(tok, "NEQ")) {
1532 ret = sb_build_dcd_block(ictx, cmd,
1533 SB_DCD_CHK_NEQ | ilen);
1534 } else if (!strcmp(tok, "NEZ")) {
1535 ret = sb_build_dcd_block(ictx, cmd,
1536 SB_DCD_CHK_NEZ | ilen);
1537 } else if (!strcmp(tok, "NOOP")) {
1538 ret = sb_build_dcd_block(ictx, cmd, SB_DCD_NOOP);
1541 "#%i ERR: Unsupported instruction '%s'!\n",
1546 fprintf(stderr, "#%i ERR: Unsupported instruction '%s'!\n",
1552 * Here we have at least one section with one command, otherwise we
1553 * would have failed already higher above.
1555 * FIXME -- should the updating happen here ?
1557 if (ictx->in_section && !ret) {
1558 ictx->sect_tail->size += ictx->sect_tail->cmd_tail->size;
1559 ictx->sect_tail->payload.section_size =
1560 ictx->sect_tail->size / SB_BLOCK_SIZE;
1566 static int sb_load_cmdfile(struct sb_image_ctx *ictx)
1568 struct sb_cmd_list cmd;
1575 fp = fopen(ictx->cfg_filename, "r");
1579 while ((rlen = getline(&line, &len, fp)) > 0) {
1580 memset(&cmd, 0, sizeof(cmd));
1582 /* Strip the trailing newline. */
1583 line[rlen - 1] = '\0';
1587 cmd.lineno = lineno++;
1589 sb_parse_line(ictx, &cmd);
1600 fprintf(stderr, "ERR: Failed to load file \"%s\"\n",
1601 ictx->cfg_filename);
1605 static int sb_build_tree_from_cfg(struct sb_image_ctx *ictx)
1609 ret = sb_load_cmdfile(ictx);
1613 ret = sb_prefill_image_header(ictx);
1617 ret = sb_postfill_image_header(ictx);
1621 ret = sb_fixup_sections_and_tags(ictx);
1628 static int sb_verify_image_header(struct sb_image_ctx *ictx,
1629 FILE *fp, long fsize)
1631 /* Verify static fields in the image header. */
1632 struct sb_boot_image_header *hdr = &ictx->payload;
1633 const char *stat[2] = { "[PASS]", "[FAIL]" };
1636 unsigned char digest[20];
1640 /* Start image-wide crypto. */
1641 EVP_MD_CTX_init(&ictx->md_ctx);
1642 EVP_DigestInit(&ictx->md_ctx, EVP_sha1());
1644 soprintf(ictx, "---------- Verifying SB Image Header ----------\n");
1646 size = fread(&ictx->payload, 1, sizeof(ictx->payload), fp);
1647 if (size != sizeof(ictx->payload)) {
1648 fprintf(stderr, "ERR: SB image header too short!\n");
1652 /* Compute header digest. */
1653 EVP_MD_CTX_init(&md_ctx);
1654 EVP_DigestInit(&md_ctx, EVP_sha1());
1655 EVP_DigestUpdate(&md_ctx, hdr->signature1,
1656 sizeof(struct sb_boot_image_header) -
1657 sizeof(hdr->digest));
1658 EVP_DigestFinal(&md_ctx, digest, NULL);
1660 sb_aes_init(ictx, NULL, 1);
1661 sb_encrypt_sb_header(ictx);
1663 if (memcmp(digest, hdr->digest, 20))
1665 soprintf(ictx, "%s Image header checksum: %s\n", stat[!!ret],
1666 ret ? "BAD" : "OK");
1670 if (memcmp(hdr->signature1, "STMP", 4) ||
1671 memcmp(hdr->signature2, "sgtl", 4))
1673 soprintf(ictx, "%s Signatures: '%.4s' '%.4s'\n",
1674 stat[!!ret], hdr->signature1, hdr->signature2);
1678 if ((hdr->major_version != SB_VERSION_MAJOR) ||
1679 ((hdr->minor_version != 1) && (hdr->minor_version != 2)))
1681 soprintf(ictx, "%s Image version: v%i.%i\n", stat[!!ret],
1682 hdr->major_version, hdr->minor_version);
1686 ret = sb_get_time(hdr->timestamp_us / 1000000, &tm);
1688 "%s Creation time: %02i:%02i:%02i %02i/%02i/%04i\n",
1689 stat[!!ret], tm.tm_hour, tm.tm_min, tm.tm_sec,
1690 tm.tm_mday, tm.tm_mon, tm.tm_year + 2000);
1694 soprintf(ictx, "%s Product version: %x.%x.%x\n", stat[0],
1695 ntohs(hdr->product_version.major),
1696 ntohs(hdr->product_version.minor),
1697 ntohs(hdr->product_version.revision));
1698 soprintf(ictx, "%s Component version: %x.%x.%x\n", stat[0],
1699 ntohs(hdr->component_version.major),
1700 ntohs(hdr->component_version.minor),
1701 ntohs(hdr->component_version.revision));
1703 if (hdr->flags & ~SB_IMAGE_FLAG_VERBOSE)
1705 soprintf(ictx, "%s Image flags: %s\n", stat[!!ret],
1706 hdr->flags & SB_IMAGE_FLAG_VERBOSE ? "Verbose_boot" : "");
1710 if (hdr->drive_tag != 0)
1712 soprintf(ictx, "%s Drive tag: %i\n", stat[!!ret],
1717 sz = sizeof(struct sb_boot_image_header) / SB_BLOCK_SIZE;
1718 if (hdr->header_blocks != sz)
1720 soprintf(ictx, "%s Image header size (blocks): %i\n", stat[!!ret],
1721 hdr->header_blocks);
1725 sz = sizeof(struct sb_sections_header) / SB_BLOCK_SIZE;
1726 if (hdr->section_header_size != sz)
1728 soprintf(ictx, "%s Section header size (blocks): %i\n", stat[!!ret],
1729 hdr->section_header_size);
1733 soprintf(ictx, "%s Sections count: %i\n", stat[!!ret],
1734 hdr->section_count);
1735 soprintf(ictx, "%s First bootable section %i\n", stat[!!ret],
1736 hdr->first_boot_section_id);
1738 if (hdr->image_blocks != fsize / SB_BLOCK_SIZE)
1740 soprintf(ictx, "%s Image size (blocks): %i\n", stat[!!ret],
1745 sz = hdr->header_blocks + hdr->section_header_size * hdr->section_count;
1746 if (hdr->key_dictionary_block != sz)
1748 soprintf(ictx, "%s Key dict offset (blocks): %i\n", stat[!!ret],
1749 hdr->key_dictionary_block);
1753 if (hdr->key_count != 1)
1755 soprintf(ictx, "%s Number of encryption keys: %i\n", stat[!!ret],
1760 sz = hdr->header_blocks + hdr->section_header_size * hdr->section_count;
1761 sz += hdr->key_count *
1762 sizeof(struct sb_key_dictionary_key) / SB_BLOCK_SIZE;
1763 if (hdr->first_boot_tag_block != (unsigned)sz)
1765 soprintf(ictx, "%s First TAG block (blocks): %i\n", stat[!!ret],
1766 hdr->first_boot_tag_block);
1773 static void sb_decrypt_tag(struct sb_image_ctx *ictx,
1774 struct sb_cmd_ctx *cctx)
1776 EVP_MD_CTX *md_ctx = &ictx->md_ctx;
1777 struct sb_command *cmd = &cctx->payload;
1779 sb_aes_crypt(ictx, (uint8_t *)&cctx->c_payload,
1780 (uint8_t *)&cctx->payload, sizeof(*cmd));
1781 EVP_DigestUpdate(md_ctx, &cctx->c_payload, sizeof(*cmd));
1784 static int sb_verify_command(struct sb_image_ctx *ictx,
1785 struct sb_cmd_ctx *cctx, FILE *fp,
1786 unsigned long *tsize)
1788 struct sb_command *ccmd = &cctx->payload;
1789 unsigned long size, asize;
1790 char *csum, *flag = "";
1793 uint8_t csn, csc = ccmd->header.checksum;
1794 ccmd->header.checksum = 0x5a;
1795 csn = sb_command_checksum(ccmd);
1796 ccmd->header.checksum = csc;
1802 csum = ret ? "checksum BAD" : "checksum OK";
1804 switch (ccmd->header.tag) {
1806 soprintf(ictx, " NOOP # %s\n", csum);
1809 if (ccmd->header.flags & ROM_TAG_CMD_FLAG_ROM_LAST_TAG)
1811 soprintf(ictx, " TAG %s # %s\n", flag, csum);
1812 sb_aes_reinit(ictx, 0);
1815 soprintf(ictx, " LOAD addr=0x%08x length=0x%08x # %s\n",
1816 ccmd->load.address, ccmd->load.count, csum);
1818 cctx->length = ccmd->load.count;
1819 asize = roundup(cctx->length, SB_BLOCK_SIZE);
1820 cctx->data = malloc(asize);
1824 size = fread(cctx->data, 1, asize, fp);
1825 if (size != asize) {
1827 "ERR: SB LOAD command payload too short!\n");
1833 EVP_DigestUpdate(&ictx->md_ctx, cctx->data, asize);
1834 sb_aes_crypt(ictx, cctx->data, cctx->data, asize);
1836 if (ccmd->load.crc32 != crc32(cctx->data, asize)) {
1838 "ERR: SB LOAD command payload CRC32 invalid!\n");
1844 " FILL addr=0x%08x length=0x%08x pattern=0x%08x # %s\n",
1845 ccmd->fill.address, ccmd->fill.count,
1846 ccmd->fill.pattern, csum);
1849 if (ccmd->header.flags & ROM_JUMP_CMD_FLAG_HAB)
1852 " JUMP%s addr=0x%08x r0_arg=0x%08x # %s\n",
1853 flag, ccmd->fill.address, ccmd->jump.argument, csum);
1856 if (ccmd->header.flags & ROM_CALL_CMD_FLAG_HAB)
1859 " CALL%s addr=0x%08x r0_arg=0x%08x # %s\n",
1860 flag, ccmd->fill.address, ccmd->jump.argument, csum);
1863 for (i = 0; i < ARRAY_SIZE(modetable); i++) {
1864 if (ccmd->mode.mode == modetable[i].mode) {
1865 soprintf(ictx, " MODE %s # %s\n",
1866 modetable[i].name, csum);
1870 fprintf(stderr, " MODE !INVALID! # %s\n", csum);
1877 static int sb_verify_commands(struct sb_image_ctx *ictx,
1878 struct sb_section_ctx *sctx, FILE *fp)
1880 unsigned long size, tsize = 0;
1881 struct sb_cmd_ctx *cctx;
1884 sb_aes_reinit(ictx, 0);
1886 while (tsize < sctx->size) {
1887 cctx = calloc(1, sizeof(*cctx));
1890 if (!sctx->cmd_head) {
1891 sctx->cmd_head = cctx;
1892 sctx->cmd_tail = cctx;
1894 sctx->cmd_tail->cmd = cctx;
1895 sctx->cmd_tail = cctx;
1898 size = fread(&cctx->c_payload, 1, sizeof(cctx->c_payload), fp);
1899 if (size != sizeof(cctx->c_payload)) {
1900 fprintf(stderr, "ERR: SB command header too short!\n");
1906 sb_decrypt_tag(ictx, cctx);
1908 ret = sb_verify_command(ictx, cctx, fp, &tsize);
1916 static int sb_verify_sections_cmds(struct sb_image_ctx *ictx, FILE *fp)
1918 struct sb_boot_image_header *hdr = &ictx->payload;
1919 struct sb_sections_header *shdr;
1922 struct sb_section_ctx *sctx;
1924 char *bootable = "";
1926 soprintf(ictx, "----- Verifying SB Sections and Commands -----\n");
1928 for (i = 0; i < hdr->section_count; i++) {
1929 sctx = calloc(1, sizeof(*sctx));
1932 if (!ictx->sect_head) {
1933 ictx->sect_head = sctx;
1934 ictx->sect_tail = sctx;
1936 ictx->sect_tail->sect = sctx;
1937 ictx->sect_tail = sctx;
1940 size = fread(&sctx->payload, 1, sizeof(sctx->payload), fp);
1941 if (size != sizeof(sctx->payload)) {
1942 fprintf(stderr, "ERR: SB section header too short!\n");
1947 size = fread(&ictx->sb_dict_key, 1, sizeof(ictx->sb_dict_key), fp);
1948 if (size != sizeof(ictx->sb_dict_key)) {
1949 fprintf(stderr, "ERR: SB key dictionary too short!\n");
1953 sb_encrypt_sb_sections_header(ictx);
1954 sb_aes_reinit(ictx, 0);
1955 sb_decrypt_key_dictionary_key(ictx);
1957 sb_aes_reinit(ictx, 0);
1959 sctx = ictx->sect_head;
1961 shdr = &sctx->payload;
1963 if (shdr->section_flags & SB_SECTION_FLAG_BOOTABLE) {
1965 bootable = " BOOTABLE";
1968 sctx->size = (shdr->section_size * SB_BLOCK_SIZE) +
1969 sizeof(struct sb_command);
1970 soprintf(ictx, "SECTION 0x%x%s # size = %i bytes\n",
1971 shdr->section_number, bootable, sctx->size);
1973 if (shdr->section_flags & ~SB_SECTION_FLAG_BOOTABLE)
1974 fprintf(stderr, " WARN: Unknown section flag(s) %08x\n",
1975 shdr->section_flags);
1977 if ((shdr->section_flags & SB_SECTION_FLAG_BOOTABLE) &&
1978 (hdr->first_boot_section_id != shdr->section_number)) {
1980 " WARN: Bootable section does ID not match image header ID!\n");
1983 ret = sb_verify_commands(ictx, sctx, fp);
1992 * check if the first TAG command is at sctx->section_offset
1997 static int sb_verify_image_end(struct sb_image_ctx *ictx,
1998 FILE *fp, off_t filesz)
2005 soprintf(ictx, "------------- Verifying image end -------------\n");
2007 size = fread(digest, 1, sizeof(digest), fp);
2008 if (size != sizeof(digest)) {
2009 fprintf(stderr, "ERR: SB key dictionary too short!\n");
2014 if (pos != filesz) {
2015 fprintf(stderr, "ERR: Trailing data past the image!\n");
2019 /* Check the image digest. */
2020 EVP_DigestFinal(&ictx->md_ctx, ictx->digest, NULL);
2022 /* Decrypt the image digest from the input image. */
2023 sb_aes_reinit(ictx, 0);
2024 sb_aes_crypt(ictx, digest, digest, sizeof(digest));
2026 /* Check all of 20 bytes of the SHA1 hash. */
2027 ret = memcmp(digest, ictx->digest, 20) ? -EINVAL : 0;
2030 soprintf(ictx, "[FAIL] Full-image checksum: BAD\n");
2032 soprintf(ictx, "[PASS] Full-image checksum: OK\n");
2038 static int sb_build_tree_from_img(struct sb_image_ctx *ictx)
2044 if (!ictx->input_filename) {
2045 fprintf(stderr, "ERR: Missing filename!\n");
2049 fp = fopen(ictx->input_filename, "r");
2053 ret = fseek(fp, 0, SEEK_END);
2057 filesize = ftell(fp);
2061 ret = fseek(fp, 0, SEEK_SET);
2065 if (filesize < (signed)sizeof(ictx->payload)) {
2066 fprintf(stderr, "ERR: File too short!\n");
2070 if (filesize & (SB_BLOCK_SIZE - 1)) {
2071 fprintf(stderr, "ERR: The file is not aligned!\n");
2075 /* Load and verify image header */
2076 ret = sb_verify_image_header(ictx, fp, filesize);
2080 /* Load and verify sections and commands */
2081 ret = sb_verify_sections_cmds(ictx, fp);
2085 ret = sb_verify_image_end(ictx, fp, filesize);
2092 soprintf(ictx, "-------------------- Result -------------------\n");
2093 soprintf(ictx, "Verification %s\n", ret ? "FAILED" : "PASSED");
2095 /* Stop the encryption session. */
2096 sb_aes_deinit(&ictx->cipher_ctx);
2104 fprintf(stderr, "ERR: Failed to load file \"%s\"\n",
2105 ictx->input_filename);
2109 static void sb_free_image(struct sb_image_ctx *ictx)
2111 struct sb_section_ctx *sctx = ictx->sect_head, *s_head;
2112 struct sb_dcd_ctx *dctx = ictx->dcd_head, *d_head;
2113 struct sb_cmd_ctx *cctx, *c_head;
2117 c_head = sctx->cmd_head;
2121 c_head = c_head->cmd;
2134 free(d_head->payload);
2140 * MXSSB-MKIMAGE glue code.
2142 static int mxsimage_check_image_types(uint8_t type)
2144 if (type == IH_TYPE_MXSIMAGE)
2145 return EXIT_SUCCESS;
2147 return EXIT_FAILURE;
2150 static void mxsimage_set_header(void *ptr, struct stat *sbuf, int ifd,
2151 struct mkimage_params *params)
2155 int mxsimage_check_params(struct mkimage_params *params)
2159 if (!strlen(params->imagename)) {
2161 "Error: %s - Configuration file not specified, it is needed for mxsimage generation\n",
2168 * XIP is not allowed and verify that incompatible
2169 * parameters are not sent at the same time
2170 * For example, if list is required a data image must not be provided
2172 return (params->dflag && (params->fflag || params->lflag)) ||
2173 (params->fflag && (params->dflag || params->lflag)) ||
2174 (params->lflag && (params->dflag || params->fflag)) ||
2175 (params->xflag) || !(strlen(params->imagename));
2178 static int mxsimage_verify_print_header(char *file, int silent)
2181 struct sb_image_ctx ctx;
2183 memset(&ctx, 0, sizeof(ctx));
2185 ctx.input_filename = file;
2186 ctx.silent_dump = silent;
2188 ret = sb_build_tree_from_img(&ctx);
2189 sb_free_image(&ctx);
2195 static int mxsimage_verify_header(unsigned char *ptr, int image_size,
2196 struct mkimage_params *params)
2198 struct sb_boot_image_header *hdr;
2203 hdr = (struct sb_boot_image_header *)ptr;
2206 * Check if the header contains the MXS image signatures,
2207 * if so, do a full-image verification.
2209 if (memcmp(hdr->signature1, "STMP", 4) ||
2210 memcmp(hdr->signature2, "sgtl", 4))
2213 imagefile = params->imagefile;
2215 return mxsimage_verify_print_header(params->imagefile, 1);
2218 static void mxsimage_print_header(const void *hdr)
2221 mxsimage_verify_print_header(imagefile, 0);
2224 static int sb_build_image(struct sb_image_ctx *ictx,
2225 struct image_type_params *tparams)
2227 struct sb_boot_image_header *sb_header = &ictx->payload;
2228 struct sb_section_ctx *sctx;
2229 struct sb_cmd_ctx *cctx;
2230 struct sb_command *ccmd;
2231 struct sb_key_dictionary_key *sb_dict_key = &ictx->sb_dict_key;
2233 uint8_t *image, *iptr;
2235 /* Calculate image size. */
2236 uint32_t size = sizeof(*sb_header) +
2237 ictx->sect_count * sizeof(struct sb_sections_header) +
2238 sizeof(*sb_dict_key) + sizeof(ictx->digest);
2240 sctx = ictx->sect_head;
2246 image = malloc(size);
2251 memcpy(iptr, sb_header, sizeof(*sb_header));
2252 iptr += sizeof(*sb_header);
2254 sctx = ictx->sect_head;
2256 memcpy(iptr, &sctx->payload, sizeof(struct sb_sections_header));
2257 iptr += sizeof(struct sb_sections_header);
2261 memcpy(iptr, sb_dict_key, sizeof(*sb_dict_key));
2262 iptr += sizeof(*sb_dict_key);
2264 sctx = ictx->sect_head;
2266 cctx = sctx->cmd_head;
2268 ccmd = &cctx->payload;
2270 memcpy(iptr, &cctx->c_payload, sizeof(cctx->payload));
2271 iptr += sizeof(cctx->payload);
2273 if (ccmd->header.tag == ROM_LOAD_CMD) {
2274 memcpy(iptr, cctx->data, cctx->length);
2275 iptr += cctx->length;
2284 memcpy(iptr, ictx->digest, sizeof(ictx->digest));
2285 iptr += sizeof(ictx->digest);
2287 /* Configure the mkimage */
2288 tparams->hdr = image;
2289 tparams->header_size = size;
2294 static int mxsimage_generate(struct mkimage_params *params,
2295 struct image_type_params *tparams)
2298 struct sb_image_ctx ctx;
2300 /* Do not copy the U-Boot image! */
2301 params->skipcpy = 1;
2303 memset(&ctx, 0, sizeof(ctx));
2305 ctx.cfg_filename = params->imagename;
2306 ctx.output_filename = params->imagefile;
2307 ctx.verbose_boot = 1;
2309 ret = sb_build_tree_from_cfg(&ctx);
2313 ret = sb_encrypt_image(&ctx);
2315 ret = sb_build_image(&ctx, tparams);
2318 sb_free_image(&ctx);
2324 * mxsimage parameters
2326 static struct image_type_params mxsimage_params = {
2327 .name = "Freescale MXS Boot Image support",
2330 .check_image_type = mxsimage_check_image_types,
2331 .verify_header = mxsimage_verify_header,
2332 .print_header = mxsimage_print_header,
2333 .set_header = mxsimage_set_header,
2334 .check_params = mxsimage_check_params,
2335 .vrec_header = mxsimage_generate,
2338 void init_mxs_image_type(void)
2340 mkimage_register(&mxsimage_params);
2344 void init_mxs_image_type(void)